BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 Germany 23 34.3%
2 Netherlands 10 14.9%
3 United States 10 14.9%
4 China 8 11.9%
5 India 5 7.5%
6 Mongolia 2 3%
7 North Macedonia 2 3%
8 France 2 3%
9 Greece 2 3%
10 Sweden 1 1.5%
11 Viet Nam 1 1.5%
12 Canada 1 1.5%